Upper panel: Cumulative distribution functions for the velocity magnitude at birth using best‐fit parameter values for models 1.1 (dotted line), 2.1 (heavy solid line), and 3.1 (dashed line). The light solid lines represent model 2.1 evaluated with parameter values that are ±1 σ from the best fit values. The vertical dashed line marks 500 km s⁻¹, the nominal speed of escape from the Galaxy at the solar circle. Lower panel: Differential probability density functions for models 1.1, 2.1, and 3.1 using best‐fit parameter values.